ASTM D4658 – Standard Test Method for Sulfide Ion in Water (Withdrawn 2024)
Description:
Significance and Use
5.1 Sulfide ion is found in ground waters and wastewater, causing odor and corrosion problems. If acidified, these waters can release hydrogen sulfide, which is extremely toxic even at low levels. This test method provides a means for interference-free measurement of free sulfide ion.
Note 1: Sulfide forms complexes with hydrogen ions (HS1− and H2S). In addition, sulfide ion forms soluble complexes with elemental sulfur (S22−, S32−, S42−, etc.), tin, antimony, and arsenic ions.
Scope
1.1 This test method uses an ion-selective electrode to determine sulfide ion in water. The test method is applicable in the range from 0.04 to 4000 mg/L of sulfide.
1.2 Precision data presented in this test method were obtained using reagent water only. It is the user’s responsibility to ensure the validity of this test method for untested types of water.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
ASTM D465